Building an altar, lighting a fire, and offering an animal or some grain to God is an act of worship that any man can perform in the book of Genesis. But after the first such offerings, by Kayin (“Cain” in English) and Hevel (“Abel”), the honors go to the man who is the head of household. In the book of Exodus, Moshe (“Moses” in English) does the offering, except when Moshe’s father-in-law Yitro visits.1
But God gives Moshe instructions for a different approach to worship when Moshe spends his first forty-day stint on top of Mount Sinai.2 Instead of building a stone altar just anywhere, offerings must all be made at a single communal altar, which will be made of acacia wood overlaid with copper (or a copper alloy). This altar will be transported to each new campsite to be used again.
It will stand in the courtyard in front of the mishkan (מִשְׁכָּן = dwelling-place), a holy structure that will be reassembled at each campsite. The back chamber of the mishkan, the Holy of Holies, is where God will dwell above the ark. The front chamber is where priests wearing special vestments will light the menorah, lay out bread on the table, and burn incense. Furthermore, every offering at the altar will require the presence of at least one ordained priest.
In this week’s Torah portion of Leviticus, Tzav (Leviticus/Vayikra 6:1-8:36), Moshe carries out God’s instructions for ordaining the first priests, and simultaneously inaugurates the mishkan and the new altar. He uses the same two liquids: anointing oil (pure olive oil with fragrant spices mixed in), and blood. (See my post Tzav: Oil and Blood.)
Anointing oil
The ceremony in this week’s Torah portion takes place near the altar in front of the curtained entrance of the mishkan. Moshe assembles everything needed for the ceremony, including a bull, two rams, and the special anointing oil. He summons the elders into the courtyard as witnesses. Then he washes and dresses the first five priests: his brother Aharon (“Aaron” in English) and Aharon’s four sons. He interrupts the dressing process to anoint the mishkan and every item inside it with the oil, and he also spatters oil on the copper altar, its tools, and its base. Only then does Moshe pour anointing oil over Aharon, who will be the first high priest.3
Anointing blood
Since Aharon and his sons are not yet officially priests, Moshe slaughters the animals for the rest of the ceremony. First comes the bull for the guilt-offering (chatat, חַטָּאת). The purpose of this offering is to purify the altar in case anything unauthorized happened to it between the time it was made and the day of its inauguration, and to purify the new priests in case they have inadvertently failed to follow one of God’s many rules. The general principle in the book of Leviticus is that one cannot be too careful when dealing with God.
Then he brought forward the bull of the guilt-offering, and Aharon and his sons leaned their hands on the head of the bull of the guilt-offering. (Leviticus 8:14)
By leaning (or laying) their hands on the head of the bull, the five new priests magically or symbolically transfer some of their spirit or identity to the bull, so that when the bull is offered to God, they are offering part of themselves to God.
Then he slaughtered it. And Moshe took the blood and put it on the karnot of the altar, all around, with his finger. Thus he removed guilt from the altar. And he poured the blood at the foundation of the altar. Thus he made it holy, for making atonement upon it [through future offerings]. (Leviticus 8:15)
karnot (קַרְנוֹת) = horns, rays of light. (Plural of keren, קֶרֶן = horn of an animal; animal horn used to hold oil; ray of light; a symbol of strength and power.
Horns were a common feature of altars in the Ancient Near East. The altar fashioned at Mount Sinai is a box, five cubits (about 3 ½ feet) square, with a grating to hold animal parts over a fire. Its horns (also copper) protrude from each of the four corners at the top.
Moshe burns all the fatty parts of the bull on the newly-purified altar to make smoke for God. Then the five future priests lean their hands on one of the rams, the one for the standard rising-offering (olah, עֺלָה), which Moshe completely burns up after splashing its blood against the four sides of the altar.
Then he brought forward the second ram, the ram of the miluim. And Aharon and his sons leaned their hands on the head of the ram. (Leviticus 8:22)
miluim (מִלֱֻאִים) = filling up; inserting something in its setting; consecration or ordination. (From the root verb malei, מָלֵא = fill, fulfill.)
And Moshe slaughtered it. And he took some of its blood and put it on the rim of Aharon’s right ear, the thumb of his right hand, and the thumb of his right foot [i.e. his right big toe]. Then he brought near the sons of Aharon, and Moshe put some of the blood on the rims of their right ears, the thumbs of their right hands, and the thumbs of their right feet. Then he dashed [the rest of] the blood on the altar, all around. (Leviticus 8:22-24)
After the offering that includes the second ram is completed,
Then Moshe took some of the anointing oil and some of the blood that was on the altar, and he sprinkled [them] on Aharon, on Aharon’s garments, on his sons, and on his sons’ garments with him. Thus he made holy Aharon, Aharon’s garments, his sons, and his sons’ garments with him. (Leviticus 8:30)
After that, the new priests must stay at the entrance of the mishkan for seven days to complete their ordination.
Extremities
Moshe consecrates everything in the mishkan, then the altar and its tools, and the high priest with the same anointing oil. But the distribution of blood is more elaborate. The altar gets bull’s blood on the horns at its four corners, then at its foundation or footing. The men get ram’s blood on their right ears, right thumbs, and right big toes.
According to Plaut, “The original intent was probably one of ritual purification; and the extremities served as a kind of summary for the entire body … ‘from top to toe.’”4
On this theory, applying blood to the altar’s top extremities (its horns) and its bottom foundation symbolically purifies the entire altar, too.
But human beings have lots of extremities. Why does the Torah specify the ear, thumb, and big toe—especially the thumb, which is halfway between a human’s head and foot?
In the first century C.E., Philo of Alexandria explained it in terms of purity: “In this figure, he indicated that the fully consecrated must be pure in words and actions and in his whole life; for words are judged by hearing, the hand is the symbol of action, and the foot of the pilgrimage of life.”5
In the 19th century, Hirsch wrote about it as a challenge for the priest: “The ear (hearing and understanding), the hand (creative work), the foot (striving to advance)—those are the primary areas in which a personality invested with the honor of leading the community, like a ram at the head of the flock, must prove itself.”6
And in the 20th century, Hertz put it in terms of God: “The ear was touched with blood, that it may be consecrated to hear the word of God; the hand, to perform the duties of the priesthood; and the foot, to walk in the path of righteousness.”7
The four horns of the copper altar are in fact its highest extremities, but they are also symbolic. Since they are shaped like animal horns, they are a reminder of the horns of the cattle, sheep, and goats sacrificed there. But the horns also might stand for the altar’s connection with the divine, evoking the idea of powerful rays of light pointing up toward the heavens—or down toward the altar.
Moses also pours the blood of purification on the foundation, or footing, of the altar. Both the priests and the altar must be pure where they reach toward heaven, and also where they have their feet (indicated by the big toe) on the ground. Only then can they be holy intermediaries between God and the people.
The method for consecrating priests described in the portion Tzav has not been used for almost two thousand years. But people still look for human intermediaries to help them connect to the ineffable, whether they are officially ordained priests, pastors, imams, rabbis, and so forth, or informal spiritual teachers who seem to (and may actually) know more than the average person. The responsibility of religious leadership can be unnerving, at least for those with enough humility to deserve the job. Actually, any position of authority and influence over others is a heavy duty.
May all leaders develop the habits of listening before speaking, of offering an open hand without grasping, and of walking slowly enough to make course corrections.
- Exodus 18:12
- Exodus 25:1-31:18.
- Leviticus 8:10-12.
- Bernard Bamberger, in The Torah: A Modern Commentary, ed. by W Gunther Plaut, Union of American Hebrew Congregations, New York, 1981, p. 797.
- Philo of Alexandria, circa 20 BCE – c. 50 CE, On the Life of Moses, II:150, quoted in Plaut, ibid.
- Samson Raphael Hirsch, 19th century, The Hirsch Chumash: Sefer Shemos, translated by Daniel Haberman, Feldheim Publishers, Jerusalem & New York, 2002, p.689.
- J.H. Hertz, ed., The Pentateuch and Haftarahs, Oxford Univ. Press, Oxford, 1936, quoted in Plaut, ibid.
- E.g. 1 Samuel 2:10, Jeremiah 48:25, Psalm 75:5, Psalm 89:18.
(An earlier version of this essay was published in 2010.)





















